This is a remix of the Z-probe holder designed by Michael Zenner (zennmaster), thing #167430.
Since not all extruders are created equal, the lever length is adjustable / customizable. Also one can use either M2.5 screws and nuts (hard to find, for me at least) or a small nylon tie to hold the limit switch.
I improved a few other small details (better fit of the servo arm, reinforcement, etc) while sticking to the original design.
OpenSCAD source is included so this part can be further remixed.
Thanks to Michael for his original design and the clear, easy to follow explanations on his blog and YouTube videos!
Printed here in PLA with 35% infill. The nylon tie must be tight around the limit switch so it does not move at all!
Note that the total distance between the center of the servo shaft and the tip of the limit switch will be approximately the arm length + 8mm i.e. for an arm length of 37mm (default value) the total distance is 45mm.